spherical hdri panorama of a narrow turbulent mountain river on a sunny autumn day in picturesque remote valley.

360 immersive panorama narrow hdri mountain river stream sunny autumn day picturesque remote valley small spherical equirectangular boulders hdr water flow 360x180 pano vr nowhere rocks nobody scattered outdoors hiking wilderness dried scenery hike wallpaper nature tranquility environment majestic landscape slopes exploration journey trekking tubulent stones